Aegir is written mostly in PHP.
Across all PHP projects on Ohloh, 29% of all source code lines are comments. For Aegir, this figure is only 9%.
This lack of comments puts Aegir among the lowest 10% of all PHP projects on Ohloh.
A high number of comments might indicate that the code is well-documented and organized, and could be a sign of a helpful and disciplined development team.